gwj / at91sam9263 · Commits

Commit f0b6243d5d7c18efbfcc7e477ffb9b8f523e2fef

Authored by ths
1 parent 64f0ce4c

linux-user symlinkat() syscall, by Thayne Harbaugh. 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3224 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 1 changed file with 27 additions and 0 deletions
linux-user/syscall.c
  View file @f0b6243
... ... @@ -149,6 +149,7 @@ type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
149 149 #define __NR_sys_openat __NR_openat
150 150 #define __NR_sys_renameat __NR_renameat
151 151 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
  152 +#define __NR_sys_symlinkat __NR_symlinkat
152 153 #define __NR_sys_syslog __NR_syslog
153 154 #define __NR_sys_tgkill __NR_tgkill
154 155 #define __NR_sys_tkill __NR_tkill
... ... @@ -196,6 +197,10 @@ _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
196 197 int,newdirfd,const char *,newpath)
197 198 #endif
198 199 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
  200 +#ifdef TARGET_NR_symlinkat
  201 +_syscall3(int,sys_symlinkat,const char *,oldpath,
  202 + int,newdirfd,const char *,newpath)
  203 +#endif
199 204 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
200 205 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
201 206 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
... ... @@ -3361,6 +3366,28 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
3361 3366 unlock_user(p, arg1, 0);
3362 3367 }
3363 3368 break;
  3369 +#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
  3370 + case TARGET_NR_symlinkat:
  3371 + if (!arg1 || !arg3) {
  3372 + ret = -EFAULT;
  3373 + goto fail;
  3374 + }
  3375 + {
  3376 + void *p2 = NULL;
  3377 + p = lock_user_string(arg1);
  3378 + p2 = lock_user_string(arg3);
  3379 + if (!access_ok(VERIFY_READ, p, 1)
  3380 + || !access_ok(VERIFY_READ, p2, 1))
  3381 + ret = -EFAULT;
  3382 + else
  3383 + ret = get_errno(sys_symlinkat(p, arg2, p2));
  3384 + if (p2)
  3385 + unlock_user(p2, arg3, 0);
  3386 + if (p)
  3387 + unlock_user(p, arg1, 0);
  3388 + }
  3389 + break;
  3390 +#endif
3364 3391 #ifdef TARGET_NR_oldlstat
3365 3392 case TARGET_NR_oldlstat:
3366 3393 goto unimplemented;
... ...